The Fundamentals of CMMI course is a self-paced elearning course which introduces students to the CMMI models, framework, process areas, and terminology. The course includes 12 modules and provides the basic knowledge needed to begin applying CMMI in an organization or project. On average each module takes users about an hour to complete.
You can register and find more details about Fundamentals here: http://cmmiinstitute.com/training/fundamentals-cmmi-elearning. This course covers all three CMMI models (CMMI for Development, CMMI for Acquisition, and CMMI for Services).